Category: Ingredient education

The average pH of healthy skin is between 4.7 and 5.75, which is slightly acidic. When you apply a highly concentrated vitamin C serum, particularly one with L-ascorbic acid, its low pH can clash with your skin's natural pH, triggering that familiar tingling sensation. This initial tingle is often normal, but understanding its root causes is key to differentiating a product that is 'working' from one that is irritating your skin.

As one of the most widely used cooking oils globally, with world production exceeding 57 million metric tons between 2018 and 2019, soybean oil is a staple in the food industry. Because it is often labeled simply as "vegetable oil," understanding **what common foods contain soybean oil** is crucial for anyone monitoring their intake or navigating a soy-free diet.